... measured power and work output during contractions under conditions approximating those used in vivo (cycle frequency, 1Hz; strain amplitude, ±10% L 0 , where L 0 is the length giving maximum isometric force). During these experiments, work output was affected by stimulation phase, but did not depend...

... against length over a full cycle is the work done on that cycle; the work done times the cycle frequency is the mechanical power output. The muscle was a flight muscle of the tettigoniid Neoconocephalus triops . The measurements were made at the normal wing-stroke frequency for flight (25 Hz...